CN218066263U

CN218066263U - Tooth pitch error detection device of ring gear

Info

Publication number: CN218066263U
Application number: CN202221612713.XU
Authority: CN
Inventors: 杨玲; 朱桐清
Original assignee: Chongqing Jiangjin Hefeng Machinery Co ltd
Current assignee: Chongqing Jiangjin Hefeng Machinery Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-12-16
Anticipated expiration: 2032-06-24

Abstract

The utility model provides a tooth pitch error detection device of ring gear, main scale and vernier scale including the cooperation is used, be equipped with the graduated flask on main scale and the vernier scale respectively, two graduated flasks cooperations are used for measuring the distance, the graduated flask is including dismantling the linkage segment of connection and measuring the section, the linkage segment is fixed with main scale or vernier scale, measure the section and include the measurement portion of spherical structure, during the use, the measurement portion sets up with the flank of tooth tangent of the arbitrary tooth's socket of the ring gear of volume of awaiting measuring. The flank of tooth tangent with the arbitrary tooth's socket of gear when measuring part uses because the section of measuring can be dismantled with the linkage segment and be connected for the size of measuring part can be selected, but adaptation and unidimensional ring gear, because the measuring part of spherical structure makes the size of tooth pitch once to measure and obtains, has reduced among the prior art vernier caliper and has needed to utilize the great problem of error that interior measuring tape and outer measuring tape's cooperation use leads to.

Description

Tooth pitch error detection device of ring gear

Technical Field

The utility model relates to a measure technical field, in particular to pitch error detection device of ring gear.

Background

In the process of equipment maintenance, the inner gear ring is deformed to different degrees due to too long service life, so that the accumulated error of adjacent tooth pitches is serious, the equipment can generate poor reflection such as vibration and abnormal sound, and the problem of how to judge the existence is solved.

Because the inner gear ring of the gear detector needs to be disassembled and assembled and the inner gear ring with a larger size is not convenient to disassemble and assemble, in the prior art, the inner gear ring is subjected to error detection by using measuring tools such as a vernier caliper, and when the error of the inner gear ring is detected, the actual tooth pitch error of the gear ring can be determined only by subtracting the maximum value and the minimum value measured by the vernier caliper.

Because the tooth pitch is equal to the sum of the tooth thickness and the tooth space width, the tooth thickness of the vernier caliper needs to be measured through the outer measuring jaw firstly when the tooth pitch is measured, then the tooth space width is measured through the inner measuring jaw, and the contact positions of the measuring jaws of the vernier caliper and the side walls of different latches cannot ensure the consistency of the measuring jaws, so that certain errors exist when the tooth pitch of the inner gear ring is measured by the vernier caliper in the prior structure.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a tooth pitch error detection device of ring gear has solved among the prior art vernier caliper's structural constraint and has leaded to the great problem of measuring error in the measurement process.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a tooth pitch error detection device of an inner gear ring comprises a main scale and a vernier which are used in a matched mode, measuring claws are respectively arranged on the main scale and the vernier and used in a matched mode to measure distance, each measuring claw comprises a connecting section and a measuring section which are detachably connected, the connecting section is fixed with the main scale or the vernier, the measuring section comprises a measuring part of a spherical structure,

when the measuring part is used, the measuring part is tangent to the tooth surface of any tooth socket of the gear ring to be measured.

Furthermore, the connecting screw rod that perpendicular main scale length direction set up on the linkage segment, the measuring part is equipped with the screw hole that sets up along its ball footpath direction, screw hole and connecting screw rod threaded connection.

Furthermore, the connecting screw that perpendicular main scale length direction set up on the linkage segment, be equipped with the thread bush that extends outward and set up with the central axis of measuring part is coaxial along its central axis in the measuring part, thread bush and connecting screw threaded connection.

And the pointer and the marker post are matched for use and used for displaying the connection position of the threaded sleeve and the connecting screw rod.

Further, the pointer includes the pilot lever of T type and the swivel becket with the vertical end connection of pilot lever, the swivel becket cover is established outside the thread bush and is connected with the thread bush rotation, the pilot lever uses with the sighting rod cooperation.

Furthermore, the marker post is provided with a strip-shaped gap groove arranged along the length direction of the marker post, both sides of the gap groove are provided with indication scales,

during the use, the vertical section card of instruction lever is established and is slided along breach groove length direction at the breach groove, just the laminating of the vertical section of instruction lever and the one side that the swivel becket was kept away from to the sighting rod slides.

Furthermore, the outer wall of the threaded sleeve is provided with an annular rotating groove, and the rotating ring is partially embedded in the rotating groove and is rotationally connected with the rotating groove.

The utility model discloses during the use: the two measuring parts are tangent to tooth surfaces of adjacent tooth sockets, the matching readings on the main scale and the vernier can be defaulted to be the numerical value of the tooth pitch, each tooth pitch has the size error of the spherical radius of the measuring part, the error detection is that the maximum value and the minimum value of the measurement of the vernier caliper are subtracted, finally, the error of the spherical radius of the measuring parts can be simultaneously subtracted, and the reading when the two measuring parts are tangent to the adjacent tooth sockets can be defaulted to be the tooth pitch of the gear ring.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the structure of vernier caliper's the measuring jaw that will have now is improved, set to can dismantle the measuring section and the linkage segment of connection, and the measuring section includes spherical structure's measuring part again, it is tangent with the flank of tooth of the arbitrary tooth's socket of gear when measuring part uses, because measuring section can dismantle with the linkage segment and be connected, make the size of measuring part size selectable, but adaptation and unidimensional ring gear, because spherical structure's measuring part makes the size of tooth pitch once can measure and obtain, vernier caliper need utilize the great problem of error that interior measuring tape and outer measuring tape's cooperation use leads to among the prior art to have reduced.

Meanwhile, the measuring part is of a spherical structure with the unchanged size during measurement, the spherical structure is more beneficial to being clamped in the tooth socket, the measuring part can be tangent to the tooth surface when being matched with different tooth sockets for use, and the measuring accuracy is ensured.

Utilize the utility model discloses the detection device who sets up makes the measurement of ring gear tooth pitch need not go up lathe detection data (gear detector or gear grinding machine promptly), reduces the cost and raises the efficiency.

And, the utility model discloses a detection device is convenient suitable for, and the practicality is strong, and the operation scene is just can be controlled, and no time, place and operational environment select, can extensively apply to the detection after the maintenance trade ring gear wearing and tearing, and the accumulative error of quick judgement ring gear.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a position relation diagram of the detecting device and the gear ring in the embodiment 1 of the present invention;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present invention

Fig. 4 is a schematic view of the connection screw and the thread bushing in embodiment 2 of the present invention;

fig. 5 is a top view of the structure of the pointer in embodiment 2 of the present invention;

fig. 6 is a side view structural diagram of the marker post in embodiment 2 of the present invention;

fig. 7 is a position relationship diagram of the detecting device and the gear ring in the embodiment 2 of the present invention;

fig. 8 is an enlarged view of a portion a of fig. 7.

In the figure: 1. a main scale; 2. a vernier scale; 3. fastening screws; 4. a measuring jaw; 41. a connecting section; 42. a measuring section; 43. a threaded sleeve; 44. connecting a screw rod; 45. a marker post; 46. a rotating ring; 47. an indication lever; 431. rotating the groove; 451. a notch groove; 461. rotating the block; 101. a ring gear.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

Example 1

As shown in fig. 1, the embodiment of the utility model provides a tooth pitch error detection device of ring gear, main scale 1 and vernier 2 including the cooperation use, be equipped with measuring jaw 4 on main scale 1 and the vernier 2 respectively, two measuring jaws 4 cooperate to use and are used for measuring distance. The utility model discloses the detection device who sets up mainly improves on current slide caliper's structure basis, and the structure of main scale 1 and vernier scale 2 is the same with slide caliper's among the prior art structure, also is equipped with fastening screw 3 on vernier scale 2, the reading when vernier scale 2 of being convenient for is fixed with main scale 1.

As shown in fig. 1, the utility model discloses mainly improve the structure of measuring jaw 4, it is concrete, measuring jaw 4 is including dismantling linkage segment 41 and the measuring section of connection, linkage segment 41 is fixed with main scale 1 or vernier scale 2, the measuring section includes spherical structure's measuring part 42, perpendicular main scale 1 length direction sets up connecting screw 44 on linkage segment 41, measuring part 42 is equipped with the screw hole that sets up along its ball footpath direction, screw hole and connecting screw 44 threaded connection. In use, the measuring portion 42 is provided tangentially to the tooth face of any tooth slot of the ring gear 101 to be measured. As shown in fig. 1, in the present embodiment, two measuring jaws 4 are provided on the main scale 1, each of which is an upper one and a lower one, the measuring portions 42 having different spherical diameters are connected to the two measuring jaws 4, correspondingly, the two measuring jaws 4 matching the main scale 1 are also provided on the vernier 2, and the spherical diameters of the measuring portions 42 provided on the two measuring jaws 4 match the spherical diameters of the two measuring portions 42 on the main scale 1, so as to measure the ring gears 101 having different tooth spaces.

As shown in fig. 2, when the utility model is used: by making the two measuring portions 42 tangent to the tooth surfaces of the two tooth sockets, the matching readings on the main scale 1 and the vernier scale 2 can be defaulted to the tooth pitch value, because each tooth pitch has the size error of the spherical radius of the measuring portion 42, and the error detection is that the maximum value minus the minimum value of the vernier caliper measurement, and finally the error of the spherical radius of the measuring portion 42 is simultaneously subtracted, so that the reading when the two measuring portions 42 are tangent to the two adjacent tooth sockets can be defaulted to the tooth pitch size of the gear ring 101.

The utility model discloses the structure of current slide caliper's graduated flask 4 is improved, set to can dismantle the measuring section and the linkage segment 41 of connection, and the measuring section includes spherical structure's measuring part 42 again, it is tangent with the flank of tooth of the arbitrary tooth's socket of gear when measuring part 42 uses, because measuring section and linkage segment 41 can be dismantled and be connected, make measuring part 42's size selectable, but adaptation and unidimensional ring gear 101, because spherical structure's measuring part 42 makes the size of tooth pitch once can measure and obtain, the great problem of error that slide caliper need utilize interior measuring tape and outer measuring tape among the prior art to use and lead to has been reduced. Meanwhile, the measuring part 42 is of a spherical structure with the unchanged size during measurement, the spherical structure is more beneficial to being clamped in the tooth socket, the measuring part 42 can be tangent to the tooth surface when being matched with different tooth sockets for use, and the measuring accuracy is ensured. Utilize the utility model discloses the detection device who sets up makes the measurement of ring gear 101 pitch need not go up lathe detection data (gear detector or gear grinding machine promptly), reduces the cost and raises the efficiency. And, the utility model discloses a detection device is convenient suitable for, and the practicality is strong, and the operation scene is just can be controlled, and no time, place and operational environment select, can extensively apply to the detection after the wearing and tearing of maintenance trade ring gear 101, and the accumulative error of ring gear 101 is judged fast.

Example 2

The depth of the threaded hole formed in embodiment 1 can be limited as required, and when the screw is used, the threaded hole and the connecting screw 44 are screwed only to the bottommost part of the threaded hole.

However, during the measurement, the radii of some gear rings 101 to be measured are different, but the width of the tooth grooves is not different, the connecting screw 44 is directly welded on the connecting section 41, the length of the main scale 1 is determined, and during the use, if the distance between the measuring part 42 and the connecting screw 44 is invariable (reducing the error, needing to be screwed to the bottom of the threaded hole), the gear rings 101 with different radii can be measured invariably due to the length limitation of the main scale 1. However, the relative position of the measuring portion 42 and the connecting screw 44 is variable, and there may be a measurement error, and therefore, the measuring portion 42 is further improved on the basis of embodiment 1 in this embodiment.

The measuring part 42 is provided with a thread bush 43 which extends outwards and is coaxially arranged along the central axis direction, and the thread bush 43 is in threaded connection with a connecting screw 44. Since the measuring part 42 is connected with the connecting section 41 through the threaded sleeve 43 and the connecting screw 44, and the measuring part 42 needs to be inserted into different tooth sockets during use, the relative distance between the measuring part 42 at the first measuring position and the tooth distance at the last measuring position and the corresponding connecting section 41 may be changed due to external influences during use, which may affect the detection accuracy. In order to solve the problem, the utility model discloses still include the sign subassembly, as shown in fig. 1, the sign subassembly is including setting up pointer and the sighting rod 45 that sets up on linkage segment 41 and connecting screw 44 parallel arrangement on the thread bush 43, the pointer uses the hookup location who is used for showing thread bush 43 and connecting screw 44 with sighting rod 45 cooperation.

As shown in fig. 3, 4, 5, and 6, specifically, the pointer includes a T-shaped indication rod 47 and a rotation ring 46 connected to a vertical end of the indication rod 47, the rotation ring 46 is sleeved outside the threaded sleeve 43 and rotatably connected to the threaded sleeve 43, an annular rotation groove 431 is formed in an outer wall of the threaded sleeve 43, and a rotation block 461 embedded in the rotation groove 431 and rotatably connected to the rotation groove 431 is disposed in the rotation ring 46. Be equipped with the breach groove 451 of the strip that sets up along its length direction on the sighting rod 45, the both sides of breach groove 451 all are equipped with the instruction scale, during the use, the vertical section card of instruction pole 47 is established and is slided along breach groove 451 length direction in breach groove 451, just the vertical section of instruction pole 47 and sighting rod 45 keep away from one side laminating slip of swivel 46. The direct vision and the indication scale are used in cooperation for observing the relative position change of the measuring part 42 and the connecting section 41, so that the error caused by the change production of the relative position of the measuring part 42 and the connected connecting section 41 in the use process is avoided.

As shown in fig. 7 and 8, the measurement can be performed by bringing the measurement portion 42 into contact with the corresponding tooth groove in the same manner as in the case of using the detection device in conjunction with the ring gear 101 in the present embodiment.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a tooth pitch error detection device of ring gear, includes main scale and the vernier scale that the cooperation was used, be equipped with the graduated flask on main scale and the vernier scale respectively, two graduated flasks cooperate to use and are used for measuring distance, its characterized in that: the measuring jaw comprises a connecting section and a measuring section which are detachably connected, the connecting section is fixed with the main ruler or the vernier, the measuring section comprises a measuring part with a spherical structure,

2. The pitch error detection device of an internal gear ring according to claim 1, characterized in that: the measuring part is provided with a threaded hole arranged along the spherical diameter direction of the measuring part, and the threaded hole is in threaded connection with the connecting screw rod.

3. The pitch error detection device of an internal gear ring according to claim 1, characterized in that: the measuring device is characterized in that a connecting screw rod perpendicular to the length direction of the main scale is arranged on the connecting section, a threaded sleeve which extends outwards and is coaxially arranged with a central shaft of the measuring part is arranged on the measuring part along the central shaft of the measuring part, and the threaded sleeve is in threaded connection with the connecting screw rod.

4. The pitch error detecting device of an internal gear ring according to claim 3, characterized in that: still include the sign subassembly, the sign subassembly is including setting up the pointer on the thread bush and setting up the sighting rod with connecting screw rod parallel arrangement on the linkage segment, pointer and sighting rod cooperation use are used for showing the thread bush and are connected the screw rod hookup location.

5. The pitch error detecting device of an annular gear according to claim 4, wherein: the pointer comprises a T-shaped indicating rod and a rotating ring connected with the vertical end of the indicating rod, the rotating ring is sleeved outside the threaded sleeve and is rotatably connected with the threaded sleeve, and the indicating rod is matched with the marker post for use.

6. The pitch error detection device of an internal gear ring according to claim 5, characterized in that: the marker post is provided with a strip-shaped gap groove arranged along the length direction of the marker post, both sides of the gap groove are provided with indication scales,

7. The pitch error detection device of an internal gear ring according to claim 5, characterized in that: the outer wall of the threaded sleeve is provided with an annular rotating groove, and the rotating ring is partially embedded in the rotating groove and is rotationally connected with the rotating groove.